\begin{table}[h]

\caption{\label{tab:t_a:nonelectoral_participation}Percentage of respondents engaging in non-electoral forms of 
    political participation. All measurements are from wave 3 (after the municipal 
    election) of the panel survey.}
\centering
\begin{tabularx}{LRRRLRRRLRRRLRRR}
\toprule
Variable & Group 1 & Group 2 & Group 3\\
\midrule
'Liked' political content on social media & 39.9 & 42.7 & 37.0\\
Signed an online petition & 29.4 & 27.1 & 20.2\\
Forwarded or shared other people's political posts on social media & 23.2 & 23.9 & 23.5\\
Offline signature collection & 22.0 & 22.9 & 16.4\\
Actively participated in discussions at public meetings & 15.8 & 19.0 & 16.7\\
\addlinespace
Protest & 14.9 & 15.3 & 13.2\\
Posted political contributions on social media or mailing lists & 10.8 & 12.1 & 9.1\\
Contacted a politician & 5.0 & 9.3 & 5.0\\
Citizen participation platforms used by government agencies on the Internet, e.g. participatory budgeting, or liquid democracy forums & 3.7 & 5.2 & 4.1\\
Citizen initiatve & 2.3 & 3.3 & 2.9\\
\bottomrule
\end{tabularx}
\end{table}
